Join 线上 upcoming events being held in Châteaudun. Châteaudun, France, is a historic city nestled along the Loir River in the Central Loire Valley, known for its impressive Château de Châteaudun, a centuries-old fortress with both medieval and Renaissance architectural elements, and its rich cultural heritage, including the nearby Notre-Dame Church and the Musée des Beaux-Arts et d'Histoire Naturelle.